Automatic coin-controlled telephone apparatus



.- May 6, 1930. c A. CAMBAY ,7 7,

AUTOMATIC COIN CONTROLLED TELEPHONE APPARATUS Filed Oct. 27, 1927 2 Sheets-Sheet 1 Y C. A. CAMBAY May 6, 1930.

AUTOMATIC COIN CONTROLLED TELEPHONE APPARATUS 2 Sheets-Sheet 2 Filed 001:. 27, 1927 Patented May 6, 1930 V UNITED STATES PATENT OFFICE I EcHARL S AMnnnE GAMBALY, orrA'zarsranivcn I AUTOMATIC com-coiv'rnonnrin rnmirrroivn APPARATUS" 1 Application filed'October 27, 1927, SeriaLNo. 229,071, and in France November 4, 1926. Y

My invention relates to a self operating coin controlled apparatus fortelephone calls of the kind in which the introduction of a coin or a counter in the apparatus trees a movable hook on which hangs the telephone receiver and consequently allows a call to be made.

According to one mode of execution when .the connection is made after 'a certain time, sixty seconds for instance, said time being controllable, the coin falls inthe apparatus. When the connection is delayediand when the call number is not free, the user may make a few calls and it willbe necessary only for him to hang againthe receiver before the sixty seconds are uptogetback his coin. To this end the apparatus comprises. be sides the hook disengaging mechanism a balanced rocking device upon which the coin falls momentarily and a liquid braking device 'in combination with the means which'act upon the rocking. device after the predetermined,

period allowed to make the connection, said rocking device oscillating to oneside in the proper direction to cause the falling of the coin inside the'apparatus. When the user ha's'notbeen able to get the connection he puts back the receiver on the hook so as to lock the hook lever and at that moment the liquid brake'not having yet been able to act, a spring abutment carried by a slide actuatediby the" coming down of the hook lever causes the rocking device. to move in the opposite direction and to eject the coin 5 out of the apparatus whenitcan be recovered;

fby'the user. The mode of execution which has just been described comprises other details of construcvided on the exterior with a knob 19.

part 16i's alsoprovidedwith a lug 16 at its I Fi .S'is a side elevation of the apparatus the c osingplate'being omitted.

Fig. 4 is a similar. view showing the unlocking mechanism. a r

Fig. '5 represents the locking bolt for the: hook lever ready to be locked. 1 a l Figs. 6 and? show respectively two different positions of the balanced rocking device.

In the mode of construction shown in Figs.

1 to 7, the apparatus comprises a fiat casing.

1 fixed upon the side of the telephone 2 (Figs 1 and 2) and provided with two openings 3 for the passageof the usualhook lever 4 to which the [telephone properly so called 5 is suspended. .1 v a Theiapparat'us comprises inside a groove 6 which guidesthe coin inserted at the top of the apparatus said coin on its travel acting upon the rocking lever 7.10m tooth of the latter maint'ains thejrocking lever 10 in en- "gagemen't bymeans of, its tooth 9, said lever being acted upon by :a spring 11. This lever 10 .isprovided with a bent ortion 10*. which constitutesa. bolt placed a ove the lever 4 of the telephone 2 which'is thus rendered stationary in its inoperative position aslong as a .coin'has notbeen introduced inthe apparatus, an abutment 10 limiting the movement ofthe lever 10. "'As the coin falls in the groove 6 it must s0 first free the lever twhen it is momentarily supported by two pins l2carriedupon a balanced-rocking devi ce13 pivoted at 14 which as the case may be is moved either to the right ,ofFfigc soasto cause. the coin 15 tofall in the apparatus, or tothe left, Fig. .7, in order to eject it as will behereinafter described.

" The hook'lever' l is engaged between two smallyplates 16 secured to a part 16provided with guiding slots 17 said fpart being 99 itself mounted in the upper part 0 the casing land receiving its movementifrom the lever 4. Onthe otherrhan'd the part 16 is provided atthe top with a lug 16 acted upon by a spring shaft. 18 designed to make the callsas will be further explained and which is roaid lower. end having a pin 19 which constitutes a connecting rod operated by the liquid braking device.

with a spring 21 for re-engaging the bolt 10 The part 16 is also provided liquid in which a small piston may move with circumferential; play, sald PlStOII having the form of a cup provided with a hole closed by a ball 25 upon which bears a smallsp ringi26i;

The piston 24 is connected by a rod 27 to a lever 28 pivotedat 29 and pivotal-1 y connected at its other end with aconnect'ing rod 20 which is guided by meansof-a slot 2O upon the pin 19 of part 16; aretrirn spring32 is designed to act upon the pistonwhen the ap paratus is set free, the pin 19 being drawn by the part 16in its upward movement,

The connecting rod 20 is provided with an 7 inclined extension29 which is designed to act'at the end of the moveinent ofthe piston 24 upon a pin 31 carried upon the'balanced rocking device 13.

Vhen the apparatus is disengaged thepart V 16 moves upwards and the spring 32 draws thepiston 24 down in the liquid more or less rapidly so as to cause the linkto rise, the

rapidity of this moirementibeingfa function ofthe play existing between the piston and the cylinder and of thelposition of the spring 32 upon the lever 28 which may beiregulated i at will bymeans'of ascrew 33; the downward: V 4 p y r the :top of the case is chosen less than the movement ofthe piston may also be 'regulated by the height ofthepistoni', by the'tension of .the.spring or by .these means combined to- 40 gether.

The disengagement of the lever Qniay be eiiected without introducing avcoin, by means the position shown in Fig; 5.

of a key inserted at 34 which raisesa' guided partprovided with a lower-extension 36 acting upon the extensionl' i of the unlocking lever anappropriate device allowing the return of the part 35 to its position.

' The coins'are gathered in a "collecting box inside the apparatus and thG C OIH when returned falls in a passagefi opening to the exterion v The IIIOdG of operation of the apparatus is ,as follows; 7 V

I The hook-4being engaged the introduction of a coin will therefore be 'suflicient to set it free said coin 15 falls in a chute 6 operating on its way the lever 7 which sets freethe bolt 10 'and then comes temporarily to rest upon thepins 12 of the balancedrockingdevice 13,

as will be seen inFig. 4, thebolt 10 being in Th te eph n ng-110W taken rom e hook the lever 4 movesupw'ards taking with i t epla e 16 when. a u cri er. may' en be calledl When the'part 16" rises the lever 20 is disengaged from the pin 19 and the spring 32 acting upon the lever 28 causes the piston 24 to godown in-the cylinder 23 containing a certain quantity of liquid which 7 must pass fromone side of the piston to the other in a predetermined time,sixty seconds for example, the-valve 25 being kept upon its seat; if the connection ismade before the sixty. seconds are up when the pistonis at the end of its downwarchmovement, that is to say that at the expiration of the time the extension 29 engages-the pin 31 and causes the rockingdevice 13to come in the position shown in :Fig. 6- when "itejects the falling coin in the receptacle 37 side the apparatus. 3 Atthe' end of the conversation the telephone 5 is put back theplate 16 is consequent which is' placed in ly-brought down compelling the spring 21 to position, theliquid in the cylinder 23 ascend ing without. difficulty, the valve being open during this" ascending movement:

If the connection'has not been made within the major portion of the time'allott'ed for makingthe connection saytwo-thirds of the t1meassumed; or forty: seconds, the button 19 s depressed moving; the slide 16 down to oscillate the book 4' and cause the super- ,visory signal .thecentral station to flash. tocall :therattention of the central operator.

The distance betweenf'the button 19 and full movement of the slide 16-; so 'that'the springs 21'and 22 will not operate on'their respective pins 10 and 30, hence this operation may be repeated several times before full -moveme'nt of the lever-128 has been attained,

as this-lever'is partially returned to initial position each time thebutton 19 is manipulated.- If no connection'is obtained the hook is hung up and the coinreturned'.- i

To ascertain: whenthefor'ty seconds has expired,-nthe-rod 27 may be provided with the casingor otherwisia time to come to the end 'of its downward movement in order to'engage theinclined sur- -an indicator showin ;through'a windowr-in In the caseof the lever'being d1S6I1g2tgBd-:' bythe introduction of a coin in the apparatus; H theicall is notransweredeven after pressing several time's upon thefpushibutto n 1'9? 01* v face 29 zwith,thepin.31,ithe,pin 3O ofthe rocking" device being then} actuated by the spring 22' 'as will be seenv in Fig. '7, so as to causethe coin'15 whichtakes itsposition wor at 6 to fall outside the apparatus where it may be recovered by the user.

What I-claim and desire to secure by Letters Patent of the UnitedStates is: a 1. In a pay attachment for telephones having a receiver supporting hook; a coin chute,

a lever having one end projecting into said chute and operated by a coin, a pivoted, spring-retracted locking bolt for engaging said hook and held and released by said lever, a pivoted temporary coin receiver in the chute below the aforesaid lever, two actuating pins on the receiver, a part for connection to and movable with the hook, means on said part to engage one of the pins and tilt the coin receiver in one direction, and timing means operated to tilt said receiver in the opposite direction after the hook has been raised, and means on said part to re-' turn the locking bolt to locking position when the hook is lowered.

2. In a pay mechanism for telephones having a receiver supporting hook a coin chute,

a pivoted lever having one end inthe chute to be actuated by a coin passing therethrough, a locking bolt to normally hold the hook depressed and so held by said lever, a pivoted temporary coin receiver in said chute below sail lever, two actuating pins on the receiver,

a liquid timing device comprising a liquid containing cylinder, a piston therein, means to displace the plston 1n the cylmder, means 'to permit said piston to move rapidly in one direction and slowly in the opposite direc-' tion, a second lever having one end connected to the piston, a vertically movable slotted element connected to the other end of the;

second lever and arranged to contact with one of said pins to tilt the receiver for reten- I tion of a coin therein at the end of the piston movement, a movable part for'conn'ection to 7 time mechanism 4. In apay telephone,the combination 'with a telephone including its book and receiver; of a latch for thehook, alcoin chute,'a. control member for thelatch projecting into the chute and operated bya coin to release, the latch, a part movable in unison with thehoolgmeans on said part to move the latch into latching position whenthe receiver. is placed on the hook, a pivoted member to temporarily receive the coin, timing mechanism to, tilt the pivoted member todischarge it for retention of the coin,means on said part to tilt the pivoted member to return the coin before the timing mechanism has actuated the pivoted member, and manual means to reciprocate said part and hook to signal the central operator before the discharge of the coin from said pivoted member. r

5. In a pay telephone, the combination v with atelephone including its hook and re- 'coin.

' In testimony that I claim the foregoing as my invention,'Ihave signed my name.

CHARLES AMEDEE CAMBA'Y.

the telephone hook, a pin thereon entering the 3 slot in the element to hold the element de pressed, means on the part to engage the other pin onthe receiver to tiltit to return the coin to the operator before completion of thepiston movement, a vpin on thevbolt and means on the part to return it to locking position I when the part is depressed for engagement by said first lever. r

3. In a pay telephone, 'thecombination with a telephone includingits hook and re-,'

ceiver; of a latch forthe hook, a coin chute,

a control, memberfor'.thelatchjprojecting into the chute andoperated by a'coinlto re lease the latch,a partmovable in unison with the hook, means on said part to move the latch into latchin position when the receiver is'pla'ced on the ook, a pivot edmemberto, I V

temporarily receive the coin,timing mechanism to tilt the pivoted member to discharge it for retention of the coin and means on said part to tilt the pivoted-member to return the mechanism has actuated the pivoted member.

coin before the timing 

